Invest1 publisher3 min readPublished
Korean savers pulled 18.95 trillion won out of money market funds in five days
The three-year treasury yield closed at 4.014% and WTI at $102.48, the KOSPI gave up the 7,000 level, and the money leaving Korea's safest funds landed in brokerage accounts with margin debt already at 32.36 trillion won.
The Investor · Invest desk
What happened
- The yield on three-year Korean treasury bonds broke above 4% to 4.014%, the first time it has cleared that level in two years and ten months, since November 2023.
- West Texas Intermediate rose 6.69% to $102.48 a barrel and Brent crude also passed $100, with the Red Sea and the Strait of Hormuz forming a double bottleneck.
- The KOSPI fell 124 points, or 1.76%, to close at 6,909.91, surrendering the 7,000 level after holding it for three trading sessions.
- The won-dollar exchange rate jumped 6.7 won to 1,345.9 on the same day, completing the third leg of the move alongside yields and crude.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- exposure Margin loans of 32.3599 trillion won sit against 107.6573 trillion won of brokerage deposits, so a second down week reaches leveraged retail accounts long before it reaches any mortgage book.
- contradiction The warning of rates, inflation and the exchange rate erupting together is conditioned on the Fed holding. Futures pricing put a quarter-point hike at 90%, and Korean borrowers face a different problem in each case.
- constraint A three-year yield 0.61 points above August inflation means Korean corporate refinancing now prices off a positive real rate, and lengthening to ten years buys only half a point more.
- decision Samsung and SK hynix have to defend the choice to put capacity into high-bandwidth memory against a rival earning 82%. TrendForce found HBM less profitable than DDR5 since the first quarter.
In the five days from the 4th, 18.9525 trillion won left Korean money market funds while investor deposits at brokerages rose 14.1073 trillion won to 107.6573 trillion won [15]. Roughly 74% of what left the safest parking place in the market landed in accounts whose purpose is buying securities [4]. Margin loans stood at 32.3599 trillion won and have been climbing since the 4th of last month [16], about 30% of those deposits [3]. Kang Jin-hyuk, a researcher at Shinhan Securities, said the figures suggest the supply-demand balance is shifting toward buyers compared with before [17].
That buying arrived on a session in which the index fell 124 points, or 1.76%, from a previous close of 7,033.91 [5][5].
The bond leg moves fastest. At 4.014% the three-year pays about 0.61 points more than August consumer prices, which rose 3.4% from a year earlier [9][1]. The ten-year at 4.540% adds only another 0.53 points for seven more years of duration [2][2]. Choi Jae-won, a professor of economics at Seoul National University, said that if inflation risk grows further, selling demand for bonds could pile up and push treasury yields higher still [14].
The Federal Open Market Committee meets on the 15th and 16th, the Bank of Japan on the 17th and 18th [10]. August core US consumer prices rose 0.3% against a 0.2% forecast [11], and the CME's FedWatch tool at one point put the odds of a quarter-point increase at this meeting as high as 90% [12]. Seoul Economic Daily reported a senior official in the financial industry warning that high interest rates, high inflation and a high exchange rate could all erupt at once if the Fed holds steady [13]. Those are two different scenarios with the same destination for Korean yields, I think. A hold pushes the currency, and the won at 1,345.9 after a 6.7 won move [8] with domestic inflation at 3.4% [9] gives the Bank of Korea very little room. A hike drags Korean yields along behind the differential.
The equipment names took the worst of it, with Wonik IPS down 7.15%, PSK down 5.60% and Jusung Engineering down 5.43% [7], against 3.53% at Samsung Electronics and 2.21% at SK hynix [6]. Their customers' problem sits in the margin line. CXMT ran an 82% operating margin in the second quarter against SK hynix at 76% and Samsung at 70% [18], 12 points clear of Samsung [7]. General-purpose DDR5 supply shrank as the Korean makers concentrated on high-bandwidth memory, and TrendForce found HBM profitability had fallen below DDR5 after the January-to-March period [19]. CXMT's second-quarter operating profit came to about 16.57 trillion won, up from a loss the paper gives as 29 billion yen a year earlier, and ahead of both Kioxia and SanDisk [20].
The briefing carrying these figures is produced by AI PRISM, an AI-based news recommendation and summary service the paper developed with support from the Korea Press Foundation [21].
WTI was near $96.05 the session before its 6.69% jump [6]. So if the Bab el-Mandeb seizure and the Red Sea and Hormuz bottleneck ease [4] and crude slips back under $100 [3], the inflation leg was a shipping disruption and 4.014% was the high. And if the margin balance turns down next week while brokerage deposits hold near 107.66 trillion won [15][16], the money that left the funds was hunting safety.
What to watch
- Whether WTI holds above $100 if the Bab el-Mandeb and Hormuz bottleneck eases.
- The Bank of Japan's policy meeting on the 17th and 18th, the second rate decision of that week.
- Whether brokerage investor deposits stay near 107.6573 trillion won once the Fed decision is known.